package com.itany.springcloud.springcloudeurekagateway6002.filter;

import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

@Component
public class CheckUsernameFilter implements GlobalFilter, Ordered {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {

        String username=exchange.getRequest().getQueryParams().getFirst("username");

//        exchange.getRequest().getHeaders().get(HttpHeaders.AUTHORIZATION);

        if(username==null||"".equals(username.trim())){
            System.out.println("用户名不能为空");
//            return null;
            exchange.getResponse().setStatusCode(HttpStatus.UNAUTHORIZED);
            return exchange.getResponse().setComplete();
        }


        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
